Journal of the Indian Society of Remote Sensing

, Volume 47, Issue 1, pp 125–137 | Cite as

Translate SAR Data into Optical Image Using IHS and Wavelet Transform Integrated Fusion

  • Wenyuan ZhangEmail author
  • Min Xu
Research Article


Although synthetic aperture radar (SAR) sensors function well at all times and under all weather conditions, the images they produce are not intuitively straightforward. A novel idea based on data fusion is introduced to translate SAR data into optical image in this paper. The proposed SAR-optical image translation is implemented using an intensity–hue–saturation (IHS) and wavelet transform integrated fusion (IHSW), so as to preserve as much as spatial details from SAR data, and minimize the spectral distortion of translated output. COSMO-SkyMed and ENVISAT-ASAR images are translated into optical images with the fusion of Landsat TM images, and the fusion results are compared with some conventional fusion methods, as well as the texture synthesis approach. Quality assessment of different fused outputs is carried out by using six quality indices. Visual and statistical comparisons of the final results indicate that the proposed approach achieves an effective translation from SAR to optical image and is superior to texture synthesis-based algorithm in terms of preserving spatial and spectral information. The proposed translation technique presents an alternative to improve the interpretability of SAR images.


Image translation Image fusion Synthetic aperture radar (SAR) Wavelet transform 



This work was funded by National Key Technologies R&D Program of China (2012BAH83F00).

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Indian Society of Remote Sensing 2018

Authors and Affiliations

  1. 1.National Research Center of Cultural IndustriesCentral China Normal UniversityWuhanChina
  2. 2.State Key Laboratory of Remote Sensing ScienceInstitute of Remote Sensing and Digital Earth of Chinese Academy of SciencesBeijingChina

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